1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Copyright (C) 2016 Intel Corporation. 5 ** Contact: https://www.qt.io/licensing/ 6 ** 7 ** This file is part of the QtDBus module of the Qt Toolkit. 8 ** 9 ** $QT_BEGIN_LICENSE:LGPL$ 10 ** Commercial License Usage 11 ** Licensees holding valid commercial Qt licenses may use this file in 12 ** accordance with the commercial license agreement provided with the 13 ** Software or, alternatively, in accordance with the terms contained in 14 ** a written agreement between you and The Qt Company. For licensing terms 15 ** and conditions see https://www.qt.io/terms-conditions. For further 16 ** information use the contact form at https://www.qt.io/contact-us. 17 ** 18 ** GNU Lesser General Public License Usage 19 ** Alternatively, this file may be used under the terms of the GNU Lesser 20 ** General Public License version 3 as published by the Free Software 21 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 22 ** packaging of this file. Please review the following information to 23 ** ensure the GNU Lesser General Public License version 3 requirements 24 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 25 ** 26 ** GNU General Public License Usage 27 ** Alternatively, this file may be used under the terms of the GNU 28 ** General Public License version 2.0 or (at your option) the GNU General 29 ** Public license version 3 or any later version approved by the KDE Free 30 ** Qt Foundation. The licenses are as published by the Free Software 31 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 32 ** included in the packaging of this file. Please review the following 33 ** information to ensure the GNU General Public License requirements will 34 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 35 ** https://www.gnu.org/licenses/gpl-3.0.html. 36 ** 37 ** $QT_END_LICENSE$ 38 ** 39 ****************************************************************************/ 40 41 // 42 // W A R N I N G 43 // ------------- 44 // 45 // This file is not part of the public API. This header file may 46 // change from version to version without notice, or even be 47 // removed. 48 // 49 // We mean it. 50 // 51 // 52 53 #ifndef QDBUSPENDINGCALL_P_H 54 #define QDBUSPENDINGCALL_P_H 55 56 #include <QtDBus/private/qtdbusglobal_p.h> 57 #include <qshareddata.h> 58 #include <qpointer.h> 59 #include <qvector.h> 60 #include <qmutex.h> 61 #include <qwaitcondition.h> 62 63 #include "qdbusmessage.h" 64 #include "qdbus_symbols_p.h" 65 66 #ifndef QT_NO_DBUS 67 68 QT_BEGIN_NAMESPACE 69 70 class QDBusPendingCall; 71 class QDBusPendingCallWatcher; 72 class QDBusPendingCallWatcherHelper; 73 class QDBusConnectionPrivate; 74 75 class QDBusPendingCallPrivate: public QSharedData 76 { 77 public: 78 // { 79 // set only during construction: 80 const QDBusMessage sentMessage; 81 QDBusConnectionPrivate * const connection; 82 83 // for the callback mechanism (see setReplyCallback and QDBusConnectionPrivate::sendWithReplyAsync) 84 QPointer<QObject> receiver; 85 QVector<int> metaTypes; 86 int methodIdx; 87 88 // } 89 90 mutable QMutex mutex; 91 QWaitCondition waitForFinishedCondition; 92 93 // { 94 // protected by the mutex above: 95 QDBusPendingCallWatcherHelper *watcherHelper; 96 QDBusMessage replyMessage; 97 DBusPendingCall *pending; 98 QString expectedReplySignature; 99 // } 100 QDBusPendingCallPrivate(const QDBusMessage & sent,QDBusConnectionPrivate * connection)101 QDBusPendingCallPrivate(const QDBusMessage &sent, QDBusConnectionPrivate *connection) 102 : sentMessage(sent), connection(connection), watcherHelper(nullptr), pending(nullptr) 103 { } 104 ~QDBusPendingCallPrivate(); 105 bool setReplyCallback(QObject *target, const char *member); 106 void waitForFinished(); 107 void setMetaTypes(int count, const int *types); 108 void checkReceivedSignature(); 109 110 static QDBusPendingCall fromMessage(const QDBusMessage &msg); 111 }; 112 113 class QDBusPendingCallWatcherHelper: public QObject 114 { 115 Q_OBJECT 116 public: 117 void add(QDBusPendingCallWatcher *watcher); 118 emitSignals(const QDBusMessage & replyMessage,const QDBusMessage & sentMessage)119 void emitSignals(const QDBusMessage &replyMessage, const QDBusMessage &sentMessage) 120 { 121 if (replyMessage.type() == QDBusMessage::ReplyMessage) 122 emit reply(replyMessage); 123 else 124 emit error(QDBusError(replyMessage), sentMessage); 125 emit finished(); 126 } 127 128 Q_SIGNALS: 129 void finished(); 130 void reply(const QDBusMessage &msg); 131 void error(const QDBusError &error, const QDBusMessage &msg); 132 }; 133 134 QT_END_NAMESPACE 135 136 #endif // QT_NO_DBUS 137 #endif 138